Detecção de Cucumber mosaic virus em alface no estado do Pará.

A alface (Lactuca sativa L.) é uma planta anual, originária de clima temperado, pertencente à família Asteracea, e certamente uma das hortaliças mais populares e consumidas no Brasil e no mundo. Diversas viroses podem causar danos à cultura da alface. O objetivo deste trabalho foi detectar a presença do Cucumber mosaic virus (CMV) na cultura da alface, utilizando o teste RT-PCR. Foram coletadas 50 amostras de alface aparentemente sem sintomas característicos de viroses no município de Ananindeua-PA e na horta da UFRA campus Belém-PA. O ácido nucléico total foi extraído a partir de folhas de alface. Para a detecção do CMV por meio do RT-PCR utilizou-se um par de iniciadores denominados CMV-CPR e CMV-CPF que permitem a amplificação do fragmento de cerca de 700 pb do DNA do gene da capa proteica. O CMV foi detectado em três amostras analisadas. Este foi o primeiro relato de CMV em alface no estado do Pará

Zoneamento agroecológico do Município de Acrelândia, Estado do Acre.

O objetivo deste estudo foi o de suprir a falta de dados relacionados aos recursos naturais regionais, visando apresentar aos orgãos de interesse agronômico, subsídios necessários a um melhor planejamento voltado a sustentabildiade municipal através de seu Zoneamento Agroecológico. São indicadas neste trabalho, áreas para uso sustentável de atividades com lavoura, pecuária e preservação ambiental, caracterizando seus solos quanto sua pontencialidade e suas limitações, visando também projetos de colonização, expansão urbana e infra-estrutura viária para ativar a potencialidade das produçóes de culturas alimentares e industriais.bitstream/item/63940/1/Oriental-Doc205.pd

Comportamento de cultivares de caupi na região amazônica.

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Using assistive robots to promote inclusive education

Purpose: This paper describes the development and test of physical and virtual integrated augmentative manipulation and communication assistive technologies (IAMCATs) that enable children with motor and speech impairments to manipulate educational items by controlling a robot with a gripper, while communicating through a speech generating device. Method: Nine children with disabilities, nine regular and nine special education teachers participated in the study. Teachers adapted academic activities so they could also be performed by the children with disabilities using the IAMCAT. An inductive content analysis of the teachers’ interviews before and after the intervention was performed. Results: Teachers considered the IAMCAT to be a useful resource that can be integrated into the regular class dynamics respecting their curricular planning. It had a positive impact on children with disabilities and on the educational community. However, teachers pointed out the difficulties in managing the class, even with another adult present, due to the extra time required by children with disabilities to complete the activities. Conclusions: The developed assistive technologies enable children with disabilities to participate in academic activities but full inclusion would require another adult in class and strategies to deal with the additional time required by children to complete the activities. IMPLICATIONS FOR REHABILITATION - Integrated augmentative manipulation and communication assistive technologies are useful resources to promote the participation of children with motor and speech impairments in classroom activities. - Virtual tools, running on a computer screen, may be easier to use but further research is needed in order to evaluate its effectiveness when compared to physical tools. - Full participation of children with motor and speech impairments in academic activities using these technologies requires another adult in class and adequate strategies to manage the extra time the child with disabilities may require to complete the activities

Using assistive robots to promote inclusive education

Purpose: This paper describes the development and test of physical and virtual integrated augmentative manipulation and communication assistive technologies (IAMCATs) that enable children with motor and speech impairments to manipulate educational items by controlling a robot with a gripper, while communicating through a speech generating device. Method: Nine children with disabilities, nine regular and nine special education teachers participated in the study. Teachers adapted academic activities so they could also be performed by the children with disabilities using the IAMCAT. An inductive content analysis of the teachers’ interviews before and after the intervention was performed. Results: Teachers considered the IAMCAT to be a useful resource that can be integrated into the regular class dynamics respecting their curricular planning. It had a positive impact on children with disabilities and on the educational community. However, teachers pointed out the difficulties in managing the class, even with another adult present, due to the extra time required by children with disabilities to complete the activities. Conclusions: The developed assistive technologies enable children with disabilities to participate in academic activities but full inclusion would require another adult in class and strategies to deal with the additional time required by children to complete the activities. Implications for Rehabilitation Integrated augmentative manipulation and communication assistive technologies are useful resources to promote the participation of children with motor and speech impairments in classroom activities. Virtual tools, running on a computer screen, may be easier to use but further research is needed in order to evaluate its effectiveness when compared to physical tools. Full participation of children with motor and speech impairments in academic activities using these technologies requires another adult in class and adequate strategies to manage the extra time the child with disabilities may require to complete the activities.info:eu-repo/semantics/acceptedVersio

Sinecologia e inventário forrageiro para manejo participativo de agroecossistema de base familiar.

Resumo: O estudo foi conduzido para avaliar as características estruturais e a produção de matéria seca no manejo participativo de agroecossistema de base familiar. Foi usada a amostragem sistemática, em sistema agroflorestal conhecido como quintal produtivo. A cobertura do solo, a frequência para gramíneas, leguminosas e outras espécies e a produção de fitomassa foram mensuradas. A cobertura do solo pela vegetação foi de 18%, as frequências para gramíneas, leguminosas e outras espécies foram, respectivamente, 81, 43 e 88% e a estimativa de produtividade de fitomassa do agroecossistema foi de 2.720 kg de MS ha-1. Com os resultados gerados, foi promovida a troca de saberes entre técnicos e agricultores na tomada de decisão sobre o manejo do agroecossistema. As variáveis estruturais quantitativas, cobertura do solo pela vegetação e frequência de grupos de espécies, com a variável produção de fitomassa podem ser usadas de forma participativa na avaliação e determinação de manejo e monitoramento de agroecossistemas de base familiar. Estudos complementares são recomendados integrando medidas quantitativas com qualitativas. [Synecology and forage inventory in participatory management of family-based agroecosystems]. Abstract: The study was conducted to evaluate the structural characteristics and dry matter (DM) production in participatory management of family-based agroecosystems. Systematic sampling was used in agroforestry system known as home gardens. The soil cover, the frequency for grasses, legumes and other species and biomass production were measured. The soil cover vegetation was 18%, the frequencies for grasses, legumes and other species were, respectively, 81, 43 and 88% and the estimated biomass productivity of the agroecosystem was 2720 kg DM ha-1. With the results, was promoted the exchange of knowledge between technicians and farmers in decision-making about agroecosystem management. Quantitative structural variables, ground cover vegetation and frequency of species groups, with variable biomass production can be used in a participatory manner in the evaluation and management and monitoring of family-based agroecosystems. Additional studies are recommended integrating qualitative with quantitative measures

Brown dwarf census with the Dark Energy Survey year 3 data and the thin disc scale height of early L types

27 pages, 18 figuresIn this paper we present a catalogue of 11 745 brown dwarfs with spectral types ranging from L0 to T9, photometrically classified using data from the Dark Energy Survey (DES) year 3 release matched to the Vista Hemisphere Survey (VHS) DR3 and Wide-field Infrared Survey Explorer (WISE) data, covering ≈2400 deg2 up to iAB = 22. The classification method follows the same phototype method previously applied to SDSS-UKIDSS-WISE data. The most significant difference comes from the use of DES data instead of SDSS, which allow us to classify almost an order of magnitude more brown dwarfs than any previous search and reaching distances beyond 400 pc for the earliest types. Next, we also present and validate the GalmodBD simulation, which produces brown dwarf number counts as a function of structural parameters with realistic photometric properties of a given survey. We use this simulation to estimate the completeness and purity of our photometric LT catalogue down to iAB = 22, as well as to compare to the observed number of LT types. We put constraints on the thin disc scale height for the early L (L0–L3) population to be around 450 pc, in agreement with previous findings. For completeness, we also publish in a separate table a catalogue of 20 863 M dwarfs that passed our colour cut with spectral types greater than M6. Both the LT and the late M catalogues are found at DES release page https://des.ncsa.illinois.edu/releases/other/y3-mlt.Peer reviewedFinal Published versio

A sociocultural analysis of the development of pre-service and beginning teachers’ pedagogical identities as users of technology

This paper reports on a study that investigated the pedagogical practices and beliefs of pre-service and beginning teachers in integrating technology into the teaching of secondary school mathematics. A case study documents how one teachers modes of working with technology changed over time and across different school contexts, and identifies relationships between a range of personal and contextual factors that influenced the development of his identity as a teacher. This analysis views teachers learning as increasing participation in sociocultural practices, and uses Valsiners concepts of the Zone of Proximal Development, Zone of Free Movement, and Zone of Promoted Action to offer a dynamic way of theorising teacher learning as identity formation

Caracterização e classificação dos solos do município de Tailândia, estado do Pará.

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Metaloproteinases (MMPS) no plasma seminal de caprinos infectados experimentalmente pelo Vírus da Artrite Encefalite Caprina (CAE).

Resumo: As Metaloproteinases de Matriz (MMPs) estão presentes nos fluidos do epidídimo de carneiros, suínos e equinos. Elas estão envolvidas no processo de fertilização durante a penetração do espermatozoide através da membrana plasmática do óvulo. Recentemente as MMPs estão sendo foco de estudo na medicina humana, pois, estão envolvidas em tumores, metástases, doenças periodontais, pneumonia, entre outras. Nesse contexto, as mesmas estão sendo investigadas como possíveis biomarcadores. Na espécie caprina os estudos são incipientes, especialmente com relação à Artrite Encefalite Caprina (CAE). Objetiva-se nesse trabalho determinar a presença das gelatinases MMP-2 e MMP-9 e sua atividade no plasma seminal de caprinos experimentalmente infectados pelo vírus da CAE.Edición de las Memorias de la 25a. Reunión de la Asociación Latinoamericana de Producción Animal (ALPA), 2016, Recife, Brasil